Table of Contents
Advertisement
Visit www.carrier.com
Installation, Start-Up, and Operating Instructions
NOTE: Read the entire instruction manual before starting the
installation.
NOTE: This furnace can be installed as a
or (1-pipe) non-direct vent
This symbol → indicates a change since the last issue.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS .....................................................2
CODES AND STANDARDS........................................................4
INTRODUCTION ..........................................................................6
APPLICATIONS............................................................................6
General ......................................................................................6
Upflow Applications.................................................................6
Downflow Applications ............................................................8
Applications ............................................................................10
Applications ............................................................................11
LOCATION..................................................................................14
General ....................................................................................14
Furnace Location Relative to Cooling Equipment ................15
Hazardous Locations...............................................................15
Furnace Location and Application .........................................15
AIR FOR COMBUSTION AND VENTILATION ....................16
INSTALLATION .........................................................................19
Leveling Legs (If Desired) .....................................................19
Applications ............................................................................19
Installation in Horizontal Applications ..................................19
Air Ducts.................................................................................21
General Requirements .......................................................21
Ductwork Acoustical Treatment .......................................21
Supply Air Connections ....................................................21
Return Air Connections.....................................................21
Filter Arrangement..................................................................22
Bottom Closure Panel.............................................................23
Gas Piping...............................................................................23
Electrical Connections ............................................................24
115-v Wiring.....................................................................25
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
PC 101
Tab 6a 8a
Fixed-Capacity Condensing Gas Furnace
Sizes 040-140, Series 100
A93040
(2-pipe) direct vent
condensing gas furnace.
Printed in U.S.A.
Catalog No. 58MXB-1SI
Deluxe 4-Way Multipoise
24-v Wiring.......................................................................26
Accessories ........................................................................26
Vent Systems ..........................................................................27
Combustion Air and Vent Pipe Systems ...............................27
Condensate Drain....................................................................41
General...............................................................................41
Application.........................................................................42
Condensation Drain Protection .........................................42
START-UP, ADJUSTMENTS AND SAFETY CHECK ...........42
General ....................................................................................42
Prime Condensate Trap With Water ......................................43
Purge Gas Lines......................................................................43
Sequence of Operation............................................................43
Heating Mode ....................................................................44
Cooling Mode ....................................................................44
Thermidistat Mode ............................................................44
Continuous Blower Mode .................................................47
Heat Pump Mode...............................................................47
Component Test.................................................................51
Adjustments.............................................................................51
Set Gas Input Rate ............................................................51
Set Temperature Rise ........................................................55
Adjust Blower Off Delay (Heat Mode)............................55
Set Thermostat Heat Anticipator ......................................55
Check Safety Controls ............................................................56
Check Primary Limit Control ...........................................56
Check Pressure Switch ......................................................56
Checklist..................................................................................56
Pg 1
58MXB
8-05
Replaces: 58MXA-18SI
Advertisement
Table of Contents
Related Manuals for Carrier Series 100
Summary of Contents for Carrier Series 100
-
Page 1: Table Of Contents
58MXB Deluxe 4–Way Multipoise Fixed-Capacity Condensing Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions Sizes 040-140, Series 100 24–v Wiring...............26 Accessories ................26 Removal of Existing Furnaces from Common Vent Systems ................27 Combustion Air and Vent Pipe Systems .......27 Condensate Drain..............41 General................41... -
Page 2: Safety Considerations
AIRFLOW CUT HAZARD Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing and gloves when han- UPFLOW dling parts. Recognize safety information. This is the safety-alert symbol When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. -
Page 4: Codes And Standards
Combustion products must be discharged outdoors. Connect this These furnaces are shipped with the following materials to assist in furnace to an approved vent system only, as specified in the proper furnace installation. These materials are shipped in the main Combustion Air and Vent piping sections of these instructions. - Page 5 INSTALLATION This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size furnaces are only approved for altitudes 0 - 7,000 ft. (0 - 2,135m). An accessory kit, supplied by the manufacturer, shall be used to convert to propane gas use or may be required for some natural gas applications. This furnace is for indoor installation in a building constructed on site.
-
Page 6: Electrostatic Discharge (Esd) Precautions
MINOR PROPERTY DAMAGE Failure to follow this caution may result in minor property damage. Local codes may require a drain pan under entire furnace and condensate trap when a condensing furnace is used in an attic application or over a finished ceiling. INTRODUCTION →... - Page 7 FURNACE BLOWER SHELF CONDENSATE DOOR TRAP FURNACE CONDENSATE DOOR FURNACE TRAP (INSIDE) FURNACE SIDE SIDE FIELD FIELD DRAIN DRAIN CONN CONN ALTERNATE DRAIN TUBE LOCATION SIDE VIEW FRONT VIEW END VIEW FRONT VIEW CONDENSATE TRAP DRAIN TUBE LOCATION HORIZONTAL DOWNFLOW AND ALTERNATE UPFLOW APPLICATIONS APPLICATIONS EXTERNAL UPFLOW APPLICATIONS...
-
Page 8: Downflow Applications
PLUG PLUG COLLECTOR BOX COLLECTOR BOX DRAIN TUBE (BLUE DRAIN TUBE (BLUE & WHITE STRIPED) & WHITE STRIPED) COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX COLLECTOR BOX TUBE (GREEN) TUBE (GREEN) COLLECTOR BOX INDUCER HOUSING DRAIN TUBE (BLUE) (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX... - Page 9 COLLECTOR BOX DRAIN TUBE (BLUE) PLUG PLUG COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX EXTENSION TUBE COLLECTOR BOX TUBE (PINK) COLLECTOR BOX TUBE (PINK) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX COLLECTOR BOX DRAIN TUBE (BLUE EXTENSION TUBE &...
-
Page 10: Horizontal Left (Supply-Air Discharge) Applications
Step 4—Horizontal Left (Supply-Air Discharge) b. Remove and discard UPPER (molded) inducer housing Applications drain tube which was previously connected to condensate trap. A horizontal left furnace application is where furnace blower is located to the right of combustion and controls section of furnace, c. -
Page 11: Horizontal Right (Supply-Air Discharge) Applications
PLUG COLLECTOR BOX AUXILIARY "J" BOX DRAIN TUBE (BLUE AND WHITE STRIPED) CONDENSATE COLLECTOR BOX TRAP TUBE (GREEN) INDUCER HOUSING COLLECTOR DRAIN TUBE (VIOLET) BOX EXTENSION COLLECTOR BOX DRAIN TUBE DRAIN TUBE (BLUE) COLLECTOR BOX EXTENSION TUBE DRAIN TUBE COUPLING COLLECTOR BOX TUBE (PINK) RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR 040, 060, AND 080 HEATING INPUT FURNACES... - Page 12 COMBUSTION – AIR INTAKE VENT A 12-IN. MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM ″ EXITING THE VENT PIPE. WORK AREA ″ ⁄ MANUAL SHUTOFF ACCESS OPENING GAS VALVE FOR TRAP DRAIN...
- Page 13 COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX EXTENSION TUBE PLUG COLLECTOR BOX TUBE (PINK) AUXILARY “J” BOX RELOCATED HERE CONDENSATE TRAP COLLECTOR BOX DRAIN TUBE (BLUE AND WHITE STRIPED) INDUCER HOUSING DRAIN TUBE (VIOLET) COLLECTOR BOX EXTENSION TUBE A00214 Fig.
-
Page 14: Location
b. Remove and discard UPPER (molded) inducer housing drain tube which was previously connected to condensate trap. c. Install cap and clamp on UPPER inducer housing drain connection where molded drain tube was removed. LEVEL (0″) FRONT FRONT d. Use inducer housing drain extension tube (violet label and ⁄... -
Page 15: Furnace Location Relative To Cooling Equipment
FRONT 32°F MINIMUM INSTALLED BACK AMBIENT OR FREEZE PROTECTION REQUIRED FRONT A93043 Fig. 15—Installation on Back is Prohibited A93058 Fig. 16—Freeze Protection → FIRE, INJURY OR DEATH HAZARD Failure to follow this warning could result in fire, property damage, personal injury or death. Do not install furnace on its back. -
Page 16: Air For Combustion And Ventilation
• Water softening chemicals • De-icing salts or chemicals • Carbon tetrachloride • Halogen type refrigerants • Cleaning solvents (such as perchloroethylene) • Printing inks, paint removers, varnishes, etc. • Hydrochloric acid • Cements and glues • Antistatic fabric softeners for clothes dryers •... - Page 17 → Table 1—Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors TWO HORIZONTAL DUCTS SINGLE DUCT OR OPENING TWO OPENINGS OR VERTICAL DUCTS (1 SQ. IN./2,000 BTUH) (1,100 SQ. MM/KW) (1 SQ. IN./3,000 BTUH) (734 SQ. MM/KW) (1 SQ.
- Page 18 1 SQ IN. PER 4000 DUCTS BTUH* OUTDOORS CIRCULATING AIR VENT THROUGH ROOF DUCTS 12″ MAX 12″ 1 SQ IN. VENT PER 2000 THROUGH 12" MAX BTUH* ROOF 1 SQ IN. 1 SQ IN. 4000 PER 1000 BTUH* BTUH* IN DOOR OR WALL DUCTS UNCONFINED...
-
Page 19: Installation
Step 2—Installation in Upflow and Downflow ″ ⁄ Applications NOTE: For downflow applications, this furnace is approved for ″ ⁄ use on combustible flooring when special base (available from manufacturer) Part No. KGASB0201ALL is used. Special base is ″ ⁄ not required when this furnace is installed on manufacturer’s Coil Assembly Part No. - Page 20 PLENUM OPENING FLOOR OPENING A96283 Fig. 21—Floor and Plenum Opening Dimensions FURNACE FURNACE (OR COIL CASING WHEN USED) CD5 OR CK5 COIL ASSEMBLY OR KCAKC COIL BOX COMBUSTIBLE COMBUSTIBLE FLOORING FLOORING DOWNFLOW SUBBASE SHEET METAL PLENUM SHEET METAL PLENUM FLOOR FLOOR OPENING OPENING...
-
Page 21: Air Ducts
SUPPLY AIR CONNECTIONS PERFORATED Upflow Furnaces DISCHARGE DUCT FLANGE Connect supply-air duct to 3/4-in. flange on furnace supply-air outlet. The supply-air duct attachment must be connected to ONLY furnace supply-/outlet-air duct flanges or air conditioning coil casing (when used). DO NOT cut main furnace casing to attach supply side air duct, humidifier, or other accessories. -
Page 22: Filter Arrangement
COMBUSTION-AIR INTAKE (NON-DIRECT VENT/1-PIPE COMBUSTION-AIR PIPE APPLICATION,SIZES 040 (DIRECT VENT/2-PIPE THROUGH 120 ONLY) APPLICATION,ALL SIZES) VENT 3-IN. MINIMUM CLEARANCE TO COMBUSTION-AIR INTAKE IS REQUIRED (NON-DIRECT VENT/1-PIPE ⁄ 8 -IN. ROD APPLICATION,SIZES 040 THROUGH 120 ONLY) ANGLE ″ ⁄ IRON OR EQUIVALENT ALTERNATE SUPPORT LOCATION 4-IN. -
Page 23: Bottom Closure Panel
21-IN. WIDE WASHABLE ⁄ -IN. WIDE CASINGS ONLY: FILTER CASINGS ONLY: SUPPORT RODS (3) INSTALL FIELD-SUPPLIED EXTEND 1/4" ON EACH FILTER FILLER STRIP SIDE OF FILTER AND UNDER FILTER. REST ON CASING FLANGE FILTER RETAINER 3 ″ ″ 1 ″ A93045 Fig. -
Page 24: Electrical Connections
Table 5—Maximum Capacity of Pipe* SUPPLY NOMINAL LENGTH OF PIPE (FT) MANUAL IRON INTERNAL SHUTOFF PIPE DIAMETER VALVE SIZE (IN.) (REQUIRED) (IN.) SEDIMENT 0.622 TRAP 0.824 UNION 1.049 1-1/4 1.380 1400 1-1/2 1.610 2100 1460 1180 * Cubic ft of gas per hr for gas pressures of 0.5 psig (14–in. wc) or less and a pressure drop of 0.5–in wc (based on a 0.60 specific gravity gas). -
Page 25: 115-V Wiring
COMBUSTION-AIR PIPE GROMMETS UNUSED 1/2 -IN. DIAMETER GAS COMBUSTION CONN. HOLE -AIR PIPE GAS LINE GAS LINE ENTRY HOLE FILLER PLUG VENT PIPE GAS LINE GROMMET VENT PIPE GROMMET NOTE: PIPE GROMMETS AND ENTRY HOLE FILLER PLUGS ARE INCLUDED IN FACTORY-SUPPLIED LOOSE PARTS BAG A05057 A05057... -
Page 26: 24-V Wiring
Table 6—Electrical Data OPERATING VOLTS— MAX WIRE MAX FUSE FURNACE UNIT VOLTAGE RANGE HERTZ— UNIT WIRE LENGTH OR CKT BKR SIZE AMPACITY† PHASE AMPS SIZE (FT)‡ AMPS** Max* Min* 040-08 115-60-1 040-12 115-60-1 10.0 060-08 115-60-1 060-12 115-60-1 060-16 115-60-1 12.8 080-12 115-60-1... -
Page 27: Removal Of Existing Furnaces From Common Vent Systems
ALTERNATE FIELD FACTORY LOCATION INSTALLED LOCATION POWER ENTRY HOLE FILLER PLUG (FACTORY- SUPPLIED LOOSE PARTS BAG) POWER ENTRY HOLE FILLER PLUG (FACTORY- UNUSED 7/8-IN. DIAMETER SUPPLIED LOOSE PARTS BAG) POWER ENTRY HOLES UNUSED 7/8-IN. DIAMETER POWER ENTRY HOLES A05058 → Fig. 34—Relocating J-Box Step 9—Removal of Existing Furnaces from Common provided for EAC connection. - Page 28 PRINTED CIRCIUT BOARD PRINTED CIRCIUT BOARD...
- Page 29 → Multistory and common venting are prohibited. DIRECT VENT/2-PIPE SYSTEM (ALL SIZES) FIRE AND EXPLOSION HAZARD In a direct-vent (2-pipe) system, all air for combustion is taken Failure to follow this warning could result in fire, property directly from outdoor atmosphere, and all flue products are damage, personal injury, or death.
- Page 30 TWINNING AND/OR COMPONENT TEST BLOWER OFF-DELAY TERMINAL BLOWER OFF-DELAY HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX.) 24-V THERMOSTAT TERMINALS TRANSFORMER 24-VAC CONNECTIONS TEST/TWIN 0.5 AMP@24VAC 3-AMP FUSE FUSE 3-AMP SEC-2 SEC-1 LED OPERATION & EAC-2 DIAGNOSTIC LIGHT PL1-LOW VOLTAGE MAIN HARNESS CONNECTOR 115-VAC(L2)NEUTRAL CONNECTIONS COOL...
- Page 31 A05009 Table 8—Direct Vent Termination Clearance...
- Page 32 A05013 → Table 9—Other than Direct Vent Termination Clearance...
- Page 33 Table 10—Maximum Allowable Exposed Vent Pipe Length (ft) With and Without Insulation in Winter Design Temperature Ambient* WINTER DESIGN MAX PIPE FURNACE WITHOUT WITH 3/8–IN. OR TEMPERATURE DIAMETER SIZE INSULATION THICKER INSULATION† (°F) (IN.) * Pipe length (ft) specified for maximum pipe lengths located in unconditioned spaces. Pipes located in unconditioned space cannot exceed total allowable pipe length as specified in Table 11.
- Page 34 → VENT PIPE NOTE: Select 1 vent pipe connection and NOTE: Select 1 vent pipe connection and 1 combustion-air pipe connection. 1 combustion-air pipe connection. General FLOW Furnace vent connection must be attached as shown in Fig. 37. COMBUSTION- COMBUSTION- VENT VENT VENT...
- Page 35 → Table 11—Maximum Allowable Pipe Length (ft) NON-DIRECT VENT DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (1-PIPE) ONLY UNIT SIZE ALTITUDE (FT) TERMINATION PIPE DIA (BTUH) PIPE DIA TYPE (IN.)* (IN.)* 2 Pipe or 2-in 40,000 1-1/2 1-1/2 Concentric 1-1/2 1-1/2 2 Pipe or 2-in...
- Page 36 → Table 11—Maximum Allowable Pipe Length (ft) (Continued) NON-DIRECT VENT DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (1-PIPE) ONLY UNIT SIZE ALTITUDE (FT) TERMINATION PIPE DIA (BTUH) PIPE DIA TYPE (IN.)* (IN.)* 1-1/2 1-1/2 2 Pipe or 2-in 40,000 Concentric 1-1/2 1-1/2...
- Page 37 → Table 11—Maximum Allowable Pipe Length (ft) (Continued) NON-DIRECT VENT DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (1-PIPE) ONLY UNIT SIZE ALTITUDE (FT) TERMINATION PIPE DIA (BTUH) PIPE DIA TYPE (IN.)* (IN.)* 1-1/2 1-1/2 2 Pipe or 2-in 40,000 Concentric 1-1/2 1-1/2...
- Page 38 COMBUSTION – AIR INTAKE HOUSING 3/8 ID TUBE BURNER COMBUSTION-AIR FURNACE PIPE (DIRECT VENT/2 PIPE) 3/16 COMBUSTION-AIR DRILL NOT IN PIPE (NON-DIRECT HORIZONTAL VENT/1-PIPE) SECTION 4″MIN TRAP PIPE DIAMETER TRANSITION IN VERTICAL SECTION TO OPEN DRAIN A93034 A05093 Fig. 39—Combustion-Air and Vent Pipe Diameter →...
- Page 39 Roof Termination (Preferred) At least 36 in. Concentric Vent and Combustion Air Roof Termination (preferred) Vertical separation between combustion At least air and vent 36 in. 8 3/4 in. for 3 in. kit Maintain 12 min. clearance above 18 in. maximum 6 3/4 in.
- Page 40 → EXAMPLE: UNIT DAMAGE HAZARD An 080-12 size furnace located in Indianapolis, elevation Failure to follow this caution may result in unit component 650 ft above sea level, could be installed as either a direct damage. vent/2-pipe system that requires 3 elbows and 32 ft of vent Vent pipe must be installed and fully seated against inducer pipe, along with 5 elbows and 34 ft of combustion-air pipe housing internal stop.
-
Page 41: Condensate Drain
→ Table 12—Vent Termination Kit for Direct Vent/2-Pipe System DIAM. OF COMBUSTION AIR AND VENT DIRECT VENT (2-PIPE) TERMINATION KIT TERMINATION SYSTEM PIPES (IN INCHES) 2-in. Concentric Vent Kit Single Penetration of Wall or Roof 1, 1-1/2, 2, or 2-1/2 3-in. -
Page 42: Application
Furnace condensate is mildly acidic, typically in the pH range of 3.2 to 4.5. Due to corrosive nature of this condensate, a condensate CONDENSATE TRAP pH neutralizing filter may be desired. Check with local authorities to determine if a pH neutralizer is required. APPLICATION The furnace, A/C, and humidifier drains may be combined and drained together. -
Page 43: Prime Condensate Trap With Water
Step 2—Prime Condensate Trap With Water UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation. Condensate trap must be PRIMED or proper draining may not occur. The condensate trap has 2 internal chambers which can ONLY be primed by pouring water into the inducer drain side of condensate trap. -
Page 44: Heating Mode
control CPU, transformer TRAN, inducer motor IDM, blower The thermostat closes the R to G-and-Y circuits. The R to motor BLWM, hot-surface igniter HSI, and gas valve GV. Y circuit starts the outdoor unit, and the R to G-and-Y/Y2 circuits start the furnace blower motor BLWM on COOL HEATING MODE speed. - Page 45 A00268 Fig. 48–Single-Stage Furnace with Single-Speed A00270 Air Conditioner Fig. 50–Single-Stage Furnace with Single-Speed Heat Pump (Dual Fuel) A00271 Fig. 51–Single-Stage Furnace with Two-Speed Heat Pump (Dual Fuel) A00269 Fig. 49–Single Stage Furnace with Two-Speed Air Conditioner...
- Page 46 HUMIDFIER HUMIDFIER (24VAC) (24VAC) A02103 A02102 Fig. 53–Dual Fuel Thermostat with Single-Stage Fig. 52–Dual Fuel Thermostat with Single-Stage Furnace and Two-Speed Heat Pump Furnace and Single-Speed Heat Pump HUMIDFIER (24VAC) A02161 Fig. 54–Two-Stage Thermostat with Single-Stage Furnace and Two-Speed Air Conditioner...
-
Page 47: Continuous Blower Mode
Notes For Figure 48-54 1. Heat pump MUST have a high pressure switch for dual fuel applications. 2. Refer to outdoor equipment Installation Instructions for additional information and setup procedure. 3. Select the “ZONE” position on the two-speed heat pump control. 4. - Page 48 Table 13—Model 58MXB Orifice Size and Manifold Pressure for Correct Input For Use with 040 through 120 Size Furnaces Only (Tabulated Data is Based on 20,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) * SPECIFIC GRAVITY OF NATURAL GAS AVG GAS ALTITUDE HEAT VALUE...
- Page 49 TABLE 13—Model 58MXB Orifice Size and Manifold Pressure for Correct Input (Continued) for Use With 040 Through 120 Size Furnaces Only (Tabulated Data Based on 20,000 Btuh per Burner, Derated 2 Percent for Each 1000 ft Above Sea Level)* SPECIFIC GRAVITY OF NATURAL GAS AVG GAS ALTITUDE HEAT VALUE...
- Page 50 Table 13—Model 58MXB Orifice Size and Manifold Pressure for Correct Input (Continued) For Use with 040 through 120 Size Furnaces Only (Tabulated Data Based on 20,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) * SPECIFIC GRAVITY OF NATURAL GAS AVG GAS ALTITUDE HEAT VALUE...
-
Page 51: Component Test
COMPONENT TEST a. Obtain average gas heat value (at installed altitude) from local gas supplier. NOTE: The furnace control component test allows all compo- nents to run for a short time; except the gas valve and humidifier b. Obtain average gas specific gravity from local gas supplier. terminal HUM are not energized for safety reasons. - Page 52 Table 14—Model 58MXB Orifice Size and Manifold Pressure for Correct Input For Use with 140 Size Furnaces Only (Tabulated Data Based on 23,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) * SPECIFIC GRAVITY OF NATURAL GAS AVG GAS ALTITUDE HEAT VALUE...
- Page 53 Table 14—Model 58MXB Orifice Size and Manifold Pressure for Correct Input (Continued) for Use With 140 Size Furnaces Only (Tabulated Data Based on 23,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) * SPECIFIC GRAVITY OF NATURAL GAS AVG GAS ALTITUDE HEAT VALUE...
- Page 54 BURNER FLAME ON AND BURNER OFF SWITCH PRESSURE REGULATOR ADJUSTMENT BURNER ENCLOSURE REFERENCE PRESSURE INLET MANIFOLD PRESSURE TAP A89020 MANIFOLD PRESSURE TAP Fig. 57—Burner Flame A95622 → Fig. 55—Redundant Automatic Gas Control Valve a. Calculate high-altitude adjustment (if required). UNITED STATES At altitudes above 2000 ft, this furnace has been approved for a 2 percent derate for each 1000 ft above sea level.
-
Page 55: Set Temperature Rise
Table 15–Altitude Derate Multipler for U.S.A. Table 16—Gas Rate (cu ft/hr) ALTITUDE PERCENT DERATE MULTIPLIER SIZE OF TEST DIAL SIZE OF TEST DIAL SECONDS SECONDS (FT) OF DERATE FACTOR* FOR 1 FOR 1 REVOLUTION REVOLUTION Cu Ft Cu Ft Cu Ft Cu Ft Cu Ft Cu Ft... -
Page 56: Check Safety Controls
THERMOSTAT SUBBASE Table 17—Speed Selector TERMINALS WITH THERMOSTAT REMOVED FACTORY- HOOK-AROUND COLOR SPEED SHIPPED VOLT/AMMETER CONNECTION Black High Cool R Y W G Yellow (When Present) Medium High Spare Blue Medium Low Heat White Common Table 18—Blower Off Delay Jumper Positions 10 TURNS PINS 1 AND 2... - Page 57 CHECKLIST—DIRECT VENT (2-PIPE) INSTALLATION LOAD CALCULATION Condensate Drain ____________ Heating Load (Btuh) ________ Unit Level or Pitched Forward ____________ Cooling Load (Btuh) Internal Tubing Connections Free of Kinks ________ and Traps ____________ Furnace Model Selection External Drain Connection Leak Tight and ________ Sloped COMBUSTION AIR AND VENT PIPING...
- Page 58 CHECKLIST—NON DIRECT VENT (1-PIPE) INSTALLATION LOAD CALCULATION Condensate Drain ____________ Heating Load (Btuh) ________ Unit Level or Pitched Forward ____________ Cooling Load (Btuh) Internal Tubing Connections Free of Kinks ________ and Traps ____________ Furnace Model Selection External Drain Connection Leak Tight and ________ Sloped VENT PIPING...
- Page 60 Copyright 2005 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 58mxb1si Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Tab 6a 8a PC 101 Printed in U.S.A.